Number of n X 3 binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically.

A202790

Number of n X 3 binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically.

Terms

    a(0) =4a(1) =50a(2) =398a(3) =3018a(4) =23436a(5) =182430a(6) =1417772a(7) =11017196a(8) =85621362a(9) =665418194a(10) =5171353118a(11) =40189602848a(12) =312336995590

External references